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89028005 = 5111938387
BaseRepresentation
bin1010100111001…
…11010110100101
320012112002110112
411103213112211
5140242344010
612500102405
72130503603
oct523472645
9205462415
1089028005
1146288070
1225994a05
13155a16c1
14bb76873
157c38a05
hex54e75a5

89028005 has 16 divisors (see below), whose sum is σ = 117163584. Its totient is φ = 64404480.

The previous prime is 89027921. The next prime is 89028007. The reversal of 89028005 is 50082098.

It is not a de Polignac number, because 89028005 - 216 = 88962469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89028007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6422 + ... + 14808.

It is an arithmetic number, because the mean of its divisors is an integer number (7322724).

Almost surely, 289028005 is an apocalyptic number.

It is an amenable number.

89028005 is a deficient number, since it is larger than the sum of its proper divisors (28135579).

89028005 is a wasteful number, since it uses less digits than its factorization.

89028005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 89028005 is about 9435.4652773459. The cubic root of 89028005 is about 446.5213343053.

The spelling of 89028005 in words is "eighty-nine million, twenty-eight thousand, five".

Divisors: 1 5 11 55 193 965 2123 8387 10615 41935 92257 461285 1618691 8093455 17805601 89028005